Great Adventure Cruises
Frans Lanting - Corbis
Rarely seen orangutan preserves are part of the agenda with Orion Expeditions’ Faces in the Forest journey. Joining the passengers at Camp Leakey, in Kalimantan Tengah, is its founder, Dr. Birute Galdikas, who introduces guests to orangutan orphans and shares insights from decades of studying primate behavior. Other things to watch for? Hornbills and proboscis monkeys. orionexpeditions.com; sails Oct. 25 and Nov. 18, 2013; from $13,670 per person.